update systemd & dbus dependencies

Update the outdated systemd and dbus dependencies which are now provided
as go modules.  This will further tighten our dependencies and releases
and pave the way for the upcoming auto-update feature.

Signed-off-by: Valentin Rothberg <rothberg@redhat.com>

1 files changed, 353 insertions, 0 deletions

diff --git a/vendor/github.com/godbus/dbus/v5/message.go b/vendor/github.com/godbus/dbus/v5/message.go
new file mode 100644
index 000000000..6a925367e
--- /dev/null
+++ b/vendor/github.com/godbus/dbus/v5/message.go
@@ -0,0 +1,353 @@
+package dbus
+
+import (
+	"bytes"
+	"encoding/binary"
+	"errors"
+	"io"
+	"reflect"
+	"strconv"
+)
+
+const protoVersion byte = 1
+
+// Flags represents the possible flags of a D-Bus message.
+type Flags byte
+
+const (
+	// FlagNoReplyExpected signals that the message is not expected to generate
+	// a reply. If this flag is set on outgoing messages, any possible reply
+	// will be discarded.
+	FlagNoReplyExpected Flags = 1 << iota
+	// FlagNoAutoStart signals that the message bus should not automatically
+	// start an application when handling this message.
+	FlagNoAutoStart
+	// FlagAllowInteractiveAuthorization may be set on a method call
+	// message to inform the receiving side that the caller is prepared
+	// to wait for interactive authorization, which might take a
+	// considerable time to complete. For instance, if this flag is set,
+	// it would be appropriate to query the user for passwords or
+	// confirmation via Polkit or a similar framework.
+	FlagAllowInteractiveAuthorization
+)
+
+// Type represents the possible types of a D-Bus message.
+type Type byte
+
+const (
+	TypeMethodCall Type = 1 + iota
+	TypeMethodReply
+	TypeError
+	TypeSignal
+	typeMax
+)
+
+func (t Type) String() string {
+	switch t {
+	case TypeMethodCall:
+		return "method call"
+	case TypeMethodReply:
+		return "reply"
+	case TypeError:
+		return "error"
+	case TypeSignal:
+		return "signal"
+	}
+	return "invalid"
+}
+
+// HeaderField represents the possible byte codes for the headers
+// of a D-Bus message.
+type HeaderField byte
+
+const (
+	FieldPath HeaderField = 1 + iota
+	FieldInterface
+	FieldMember
+	FieldErrorName
+	FieldReplySerial
+	FieldDestination
+	FieldSender
+	FieldSignature
+	FieldUnixFDs
+	fieldMax
+)
+
+// An InvalidMessageError describes the reason why a D-Bus message is regarded as
+// invalid.
+type InvalidMessageError string
+
+func (e InvalidMessageError) Error() string {
+	return "dbus: invalid message: " + string(e)
+}
+
+// fieldType are the types of the various header fields.
+var fieldTypes = [fieldMax]reflect.Type{
+	FieldPath:        objectPathType,
+	FieldInterface:   stringType,
+	FieldMember:      stringType,
+	FieldErrorName:   stringType,
+	FieldReplySerial: uint32Type,
+	FieldDestination: stringType,
+	FieldSender:      stringType,
+	FieldSignature:   signatureType,
+	FieldUnixFDs:     uint32Type,
+}
+
+// requiredFields lists the header fields that are required by the different
+// message types.
+var requiredFields = [typeMax][]HeaderField{
+	TypeMethodCall:  {FieldPath, FieldMember},
+	TypeMethodReply: {FieldReplySerial},
+	TypeError:       {FieldErrorName, FieldReplySerial},
+	TypeSignal:      {FieldPath, FieldInterface, FieldMember},
+}
+
+// Message represents a single D-Bus message.
+type Message struct {
+	Type
+	Flags
+	Headers map[HeaderField]Variant
+	Body    []interface{}
+
+	serial uint32
+}
+
+type header struct {
+	Field byte
+	Variant
+}
+
+// DecodeMessage tries to decode a single message in the D-Bus wire format
+// from the given reader. The byte order is figured out from the first byte.
+// The possibly returned error can be an error of the underlying reader, an
+// InvalidMessageError or a FormatError.
+func DecodeMessage(rd io.Reader) (msg *Message, err error) {
+	var order binary.ByteOrder
+	var hlength, length uint32
+	var typ, flags, proto byte
+	var headers []header
+
+	b := make([]byte, 1)
+	_, err = rd.Read(b)
+	if err != nil {
+		return
+	}
+	switch b[0] {
+	case 'l':
+		order = binary.LittleEndian
+	case 'B':
+		order = binary.BigEndian
+	default:
+		return nil, InvalidMessageError("invalid byte order")
+	}
+
+	dec := newDecoder(rd, order)
+	dec.pos = 1
+
+	msg = new(Message)
+	vs, err := dec.Decode(Signature{"yyyuu"})
+	if err != nil {
+		return nil, err
+	}
+	if err = Store(vs, &typ, &flags, &proto, &length, &msg.serial); err != nil {
+		return nil, err
+	}
+	msg.Type = Type(typ)
+	msg.Flags = Flags(flags)
+
+	// get the header length separately because we need it later
+	b = make([]byte, 4)
+	_, err = io.ReadFull(rd, b)
+	if err != nil {
+		return nil, err
+	}
+	binary.Read(bytes.NewBuffer(b), order, &hlength)
+	if hlength+length+16 > 1<<27 {
+		return nil, InvalidMessageError("message is too long")
+	}
+	dec = newDecoder(io.MultiReader(bytes.NewBuffer(b), rd), order)
+	dec.pos = 12
+	vs, err = dec.Decode(Signature{"a(yv)"})
+	if err != nil {
+		return nil, err
+	}
+	if err = Store(vs, &headers); err != nil {
+		return nil, err
+	}
+
+	msg.Headers = make(map[HeaderField]Variant)
+	for _, v := range headers {
+		msg.Headers[HeaderField(v.Field)] = v.Variant
+	}
+
+	dec.align(8)
+	body := make([]byte, int(length))
+	if length != 0 {
+		_, err := io.ReadFull(rd, body)
+		if err != nil {
+			return nil, err
+		}
+	}
+
+	if err = msg.IsValid(); err != nil {
+		return nil, err
+	}
+	sig, _ := msg.Headers[FieldSignature].value.(Signature)
+	if sig.str != "" {
+		buf := bytes.NewBuffer(body)
+		dec = newDecoder(buf, order)
+		vs, err := dec.Decode(sig)
+		if err != nil {
+			return nil, err
+		}
+		msg.Body = vs
+	}
+
+	return
+}
+
+// EncodeTo encodes and sends a message to the given writer. The byte order must
+// be either binary.LittleEndian or binary.BigEndian. If the message is not
+// valid or an error occurs when writing, an error is returned.
+func (msg *Message) EncodeTo(out io.Writer, order binary.ByteOrder) error {
+	if err := msg.IsValid(); err != nil {
+		return err
+	}
+	var vs [7]interface{}
+	switch order {
+	case binary.LittleEndian:
+		vs[0] = byte('l')
+	case binary.BigEndian:
+		vs[0] = byte('B')
+	default:
+		return errors.New("dbus: invalid byte order")
+	}
+	body := new(bytes.Buffer)
+	enc := newEncoder(body, order)
+	if len(msg.Body) != 0 {
+		enc.Encode(msg.Body...)
+	}
+	vs[1] = msg.Type
+	vs[2] = msg.Flags
+	vs[3] = protoVersion
+	vs[4] = uint32(len(body.Bytes()))
+	vs[5] = msg.serial
+	headers := make([]header, 0, len(msg.Headers))
+	for k, v := range msg.Headers {
+		headers = append(headers, header{byte(k), v})
+	}
+	vs[6] = headers
+	var buf bytes.Buffer
+	enc = newEncoder(&buf, order)
+	enc.Encode(vs[:]...)
+	enc.align(8)
+	body.WriteTo(&buf)
+	if buf.Len() > 1<<27 {
+		return InvalidMessageError("message is too long")
+	}
+	if _, err := buf.WriteTo(out); err != nil {
+		return err
+	}
+	return nil
+}
+
+// IsValid checks whether msg is a valid message and returns an
+// InvalidMessageError if it is not.
+func (msg *Message) IsValid() error {
+	if msg.Flags & ^(FlagNoAutoStart|FlagNoReplyExpected|FlagAllowInteractiveAuthorization) != 0 {
+		return InvalidMessageError("invalid flags")
+	}
+	if msg.Type == 0 || msg.Type >= typeMax {
+		return InvalidMessageError("invalid message type")
+	}
+	for k, v := range msg.Headers {
+		if k == 0 || k >= fieldMax {
+			return InvalidMessageError("invalid header")
+		}
+		if reflect.TypeOf(v.value) != fieldTypes[k] {
+			return InvalidMessageError("invalid type of header field")
+		}
+	}
+	for _, v := range requiredFields[msg.Type] {
+		if _, ok := msg.Headers[v]; !ok {
+			return InvalidMessageError("missing required header")
+		}
+	}
+	if path, ok := msg.Headers[FieldPath]; ok {
+		if !path.value.(ObjectPath).IsValid() {
+			return InvalidMessageError("invalid path name")
+		}
+	}
+	if iface, ok := msg.Headers[FieldInterface]; ok {
+		if !isValidInterface(iface.value.(string)) {
+			return InvalidMessageError("invalid interface name")
+		}
+	}
+	if member, ok := msg.Headers[FieldMember]; ok {
+		if !isValidMember(member.value.(string)) {
+			return InvalidMessageError("invalid member name")
+		}
+	}
+	if errname, ok := msg.Headers[FieldErrorName]; ok {
+		if !isValidInterface(errname.value.(string)) {
+			return InvalidMessageError("invalid error name")
+		}
+	}
+	if len(msg.Body) != 0 {
+		if _, ok := msg.Headers[FieldSignature]; !ok {
+			return InvalidMessageError("missing signature")
+		}
+	}
+	return nil
+}
+
+// Serial returns the message's serial number. The returned value is only valid
+// for messages received by eavesdropping.
+func (msg *Message) Serial() uint32 {
+	return msg.serial
+}
+
+// String returns a string representation of a message similar to the format of
+// dbus-monitor.
+func (msg *Message) String() string {
+	if err := msg.IsValid(); err != nil {
+		return "<invalid>"
+	}
+	s := msg.Type.String()
+	if v, ok := msg.Headers[FieldSender]; ok {
+		s += " from " + v.value.(string)
+	}
+	if v, ok := msg.Headers[FieldDestination]; ok {
+		s += " to " + v.value.(string)
+	}
+	s += " serial " + strconv.FormatUint(uint64(msg.serial), 10)
+	if v, ok := msg.Headers[FieldReplySerial]; ok {
+		s += " reply_serial " + strconv.FormatUint(uint64(v.value.(uint32)), 10)
+	}
+	if v, ok := msg.Headers[FieldUnixFDs]; ok {
+		s += " unixfds " + strconv.FormatUint(uint64(v.value.(uint32)), 10)
+	}
+	if v, ok := msg.Headers[FieldPath]; ok {
+		s += " path " + string(v.value.(ObjectPath))
+	}
+	if v, ok := msg.Headers[FieldInterface]; ok {
+		s += " interface " + v.value.(string)
+	}
+	if v, ok := msg.Headers[FieldErrorName]; ok {
+		s += " error " + v.value.(string)
+	}
+	if v, ok := msg.Headers[FieldMember]; ok {
+		s += " member " + v.value.(string)
+	}
+	if len(msg.Body) != 0 {
+		s += "\n"
+	}
+	for i, v := range msg.Body {
+		s += "  " + MakeVariant(v).String()
+		if i != len(msg.Body)-1 {
+			s += "\n"
+		}
+	}
+	return s
+}